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Vishay General Semiconductor - Diodes Division P4KA24HE3/54
- Part No.:
- P4KA24HE3/54
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-204AL, DO-41, Axial
- Datasheet:
-
P4KA24HE3/54.pdf
- Description:
- TVS DIODE 19.4VWM 34.2VC DO204AL
- Quantity:
- Payment:
- Shipping:
Inventory:6,271
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Product details
Overview
P4KA24HE3/54 from Vishay General Semiconductor is a unidirectional automotive-grade transient voltage suppressor (TVS) diode in DO-204AL (DO-41) package, with 21.6 V to 26.4 V breakdown voltage (VBR), 400 W peak pulse power (10/1000 µs), 1.5 W steady-state power dissipation, 11.5 A peak pulse current (IPPM), and 34.2 V clamping voltage (VC) at IPPM, designed for protecting MOSFETs and sensor signal lines in automotive powertrain control modules.
For engineers reviewing the P4KA24HE3/54 datasheet, P4KA24HE3/54 pinout, P4KA24HE3/54 application, or P4KA24HE3/54 equivalent, key selection criteria include AEC-Q101 qualification, 185 °C maximum junction temperature, low incremental surge resistance, RoHS-compliant matte tin-plated leads, and JESD201 Class 2 whisker resistance - all critical for under-hood electronics reliability.
Technical Context
This TVS diode employs Vishay's patented PAR® construction for stable clamping under high-temperature transients and meets ANSI/IEEE C62.35 standards for surge suppression. It operates unidirectionally with cathode indicated by color band and is rated for non-repetitive 10/1000 µs surges at 0.01% duty cycle.
The device delivers 34.2 V clamping at 11.5 A IPPM, exhibits 0.094 %/°C VBR temperature coefficient, and maintains ≤1.0 µA reverse leakage at 19.4 V stand-off voltage (VWM) up to 150 °C - enabling robust protection in engine control units exposed to load dump and ISO 7637-2 pulses.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 21.6 V / 26.4 V - ensures reliable triggering above system operating voltage while avoiding false trips during normal transients |
| VC @ IPPM | 34.2 V - limits downstream voltage stress on protected ICs during 11.5 A surge events |
| PPPM | 400 W - sustains 10/1000 µs surge energy without degradation under automotive load-dump conditions |
| TJ max. | +185 °C - supports operation in high-temperature engine bay environments without derating loss |
| VWM | 19.4 V - provides 10% margin above typical 12 V nominal automotive supply, blocking normal ripple |
| IFSM | 40 A - withstands 8.3 ms half-sine surge from alternator load dump per ISO 7637-2 |
| Leakage @ VWM | ≤1.0 µA at 25 °C - minimizes standby power loss in always-on vehicle networks |
Pinout & Package
Package: DO-204AL (DO-41), axial lead, molded epoxy case meeting UL 94 V-0; matte tin-plated leads compliant with J-STD-002 and JESD22-B102; cathode denoted by color band.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry point in forward bias; connected to ground or low-side reference | Provides low-VF (3.5 V @ 25 A) path during surge conduction to shunt energy safely |
| Cathode | Current exit point in forward bias; connected to protected line | Color-banded end enables correct orientation during PCB assembly to ensure unidirectional clamping |
Key Features
| Feature | Design Value |
|---|---|
| Patented PAR® construction | Enables consistent VBR stability across temperature and lifetime, critical for AEC-Q101 compliance |
| AEC-Q101 qualified | Validated for automotive applications including powertrain, body control, and ADAS sensor interfaces |
| Low incremental surge resistance | Minimizes VC overshoot during fast-rising transients (e.g., ISO 16750-2 pulse 5a) |
| JESD201 Class 2 whisker resistance | Prevents tin whisker growth in high-humidity, high-temperature under-hood environments |
| UL 94 V-0 molding compound | Meets flammability requirements for engine compartment wiring harness and ECU enclosures |
Applications
| Engine Control Unit (ECU) Power Input Protection | Automotive Sensor Signal Line Protection |
|---|---|
Use Scenario: Protects 12 V supply rail of gasoline/diesel engine ECUs against ISO 7637-2 load dump (up to 60 V, 400 ms) and jump-start surges. IC Role / Device Role / Timing Role: Unidirectional TVS clamps overvoltage before it reaches MCU power pins and voltage regulators. Use Value: Withstands 400 W peak pulse and 185 °C junction temperature, ensuring uninterrupted operation during extreme thermal cycling. | Use Scenario: Shields analog outputs of crankshaft/camshaft position sensors from inductive switching noise on shared harnesses. IC Role / Device Role / Timing Role: Fast-response TVS absorbs sub-100 ns transients induced by nearby solenoid actuation. Use Value: 34.2 V clamping voltage preserves signal integrity within 0–5 V sensor range while maintaining <1 µA leakage at 19.4 V VWM. |
| Body Control Module (BCM) LIN Bus Protection | ADAS Camera Power Rail Protection |
Use Scenario: Guards LIN transceiver VCC input against battery feed transients in door module and lighting control units. IC Role / Device Role / Timing Role: Unidirectional clamping prevents damage to LIN PHY during wake-up pulses and short-circuit recovery. Use Value: 0.094 %/°C VBR coefficient ensures stable threshold across -40 °C to +125 °C ambient, supporting full automotive temperature range. | Use Scenario: Safeguards 12 V input of rear-view camera modules mounted near exhaust systems with ambient up to 105 °C. IC Role / Device Role / Timing Role: High-reliability TVS absorbs ESD and conducted RF noise coupled via coaxial video cable shield. Use Value: RoHS-compliant HE3 suffix and JESD201 Class 2 plating prevent field failures due to tin whiskers in long-life automotive deployments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ24A-E3/5BT | Lower PPPM (400 W same), but higher VC (38.9 V), lower IPPM (10.3 A), SMA package (surface-mount) | Not AEC-Q101 qualified; suited for consumer/commercial PCBs where space constraints favor SMD | Select when board area is limited and automotive qualification is not required |
| 1.5KE24A | Same DO-41 package, but 1.5 kW PPPM, higher VC (38.7 V), higher leakage (5 µA), no AEC-Q101 or JESD201 Class 2 rating | Designed for industrial power supplies; lacks automotive reliability validation and high-temp stability | Select only for non-automotive applications requiring higher surge energy handling |
Compared with SMAJ24A-E3/5BT and 1.5KE24A, the P4KA24HE3/54 uniquely combines AEC-Q101 qualification, 185 °C TJ max., JESD201 Class 2 whisker resistance, and tight VBR tolerance - making it the sole choice for safety-critical automotive power and sensor protection where long-term under-hood reliability is mandatory.
Availability
P4KA24HE3/54 is available at Aetrix Electronics and suitable for automotive powertrain control, body electronics, ADAS camera systems, and sensor interface protection requiring stable component supply across extended temperature ranges and multi-year production cycles.
Supply support for P4KA24HE3/54 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Vishay General Semiconductor is a global leader in discrete semiconductors, specializing in high-reliability diodes, rectifiers, and protection devices for demanding industrial and automotive applications.
The P4KA24HE3/54 belongs to Vishay's automotive TVS diode family engineered specifically for AEC-Q101 compliance, high-temperature stability, and robust transient immunity in engine control, chassis, and infotainment systems.
FAQ
What is the exact breakdown voltage range for P4KA24HE3/54?
The P4KA24HE3/54 has a guaranteed breakdown voltage (VBR) range of 21.6 V to 26.4 V at 1.0 mA test current, measured per ANSI/IEEE C62.35 standards. This range ensures reliable activation above nominal 12 V automotive systems while avoiding nuisance triggering during normal voltage fluctuations. The P4KA24HE3/54 achieves this with ±10% tolerance and 0.094 %/°C temperature coefficient.
Is P4KA24HE3/54 qualified for automotive use?
Yes, the P4KA24HE3/54 is AEC-Q101 qualified and designated as high-reliability/automotive grade (HE3 suffix). It undergoes rigorous stress testing including high-temperature operating life, temperature cycling, and humidity bias, and is validated for under-hood applications such as engine control units and body control modules. The P4KA24HE3/54 also meets RoHS 2002/95/EC and WEEE 2002/96/EC directives.
What is the clamping voltage of P4KA24HE3/54 at its rated peak pulse current?
The P4KA24HE3/54 clamps to a maximum of 34.2 V at its rated peak pulse current (IPPM) of 11.5 A, using the standard 10/1000 µs waveform. This clamping performance is verified per Fig. 1 and Table on page 2 of Vishay document 88364. The low VC ensures protected downstream components like MCUs and transceivers remain within safe absolute maximum ratings during surge events.
Does P4KA24HE3/54 have lead-free and whisker-resistant plating?
Yes, the P4KA24HE3/54 features matte tin-plated leads that comply with J-STD-002 and JESD22-B102 solderability standards, and the HE3 suffix confirms it passes JESD201 Class 2 whisker testing. This ensures long-term reliability in high-temperature, high-humidity automotive environments where tin whisker growth could cause latent shorts. The P4KA24HE3/54 is fully RoHS-compliant per 2002/95/EC.
What package type and mounting style does P4KA24HE3/54 use?
The P4KA24HE3/54 uses the DO-204AL (DO-41) axial-leaded package with molded epoxy housing rated UL 94 V-0. It is through-hole mounted, with cathode identified by a color band. Lead diameter is 0.028–0.034 inches (0.71–0.86 mm), and overall length exceeds 1.0 inch (25.4 mm). The P4KA24HE3/54 is supplied in 13" paper tape and reel (5500 pcs per reel, package code 54).
P4KA24HE3/54 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-204AL, DO-41, Axial
- Series:
- PAR®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 19.4V
- Voltage - Breakdown (Min):
- 21.6V
- Voltage - Clamping (Max) @ Ipp:
- 34.2V
- Current - Peak Pulse (10/1000µs):
- 11.5A
- Power - Peak Pulse:
- 400W
- Power Line Protection:
- No
- Applications:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -65°C ~ 185°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Through Hole
- Supplier Device Package:
- DO-204AL (DO-41)
P4KA24HE3/54 FAQ
1.How can I place an order for P4KA24HE3/54 through Aetrix?
Please submit a Request for Quotation (RFQ) for P4KA24HE3/54 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for P4KA24HE3/54 reliable?
The price and inventory of P4KA24HE3/54 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P4KA24HE3/54 is usually 5 days.
3.What payment methods are accepted for P4KA24HE3/54?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P4KA24HE3/54 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P4KA24HE3/54?
P4KA24HE3/54 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P4KA24HE3/54 order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for P4KA24HE3/54?
For technical support, including P4KA24HE3/54 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P4KA24HE3/54 requirements.
6.How does Aetrix verify that P4KA24HE3/54 is sourced from the original manufacturer or authorized distributors?
All P4KA24HE3/54 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that P4KA24HE3/54 meets industry standards.
7.What is the process for return or replacement of P4KA24HE3/54?
All P4KA24HE3/54 units undergo pre-shipment inspection (PSI). If there is an issue with P4KA24HE3/54, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The P4KA24HE3/54 part is unused and in its original packaging.
Return procedure for P4KA24HE3/54:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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